# Identifier "logger" is not defined

**URL:** <https://discourse.slimframework.com/t/identifier-logger-is-not-defined/1135>\
**Category:** Questions\
**Created:** [February 9, 2017, 12:33am UTC](https://discourse.slimframework.com/t/identifier-logger-is-not-defined/1135 "2017-02-09T00:33:02Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![listen](https://avatars.discourse-cdn.com/v4/letter/l/d07c76/32.png) [@listen](https://discourse.slimframework.com/u/listen)\
**Post date:** [February 9, 2017, 12:33am UTC](https://discourse.slimframework.com/t/identifier-logger-is-not-defined/1135/1 "2017-02-09T00:33:02Z")

</div>

Type: Slim\Exception\ContainerValueNotFoundException  
Message: Identifier “logger” is not defined.  
File: /data/wwwroot/www.slim.com/ssm/vendor/slim/slim/Slim/Container.php  
Line: 120